Phylogenetic tree for McGehee DNA results

One possible, and perhaps likely, representation of the relationships based on the DNA results.

Earliest DNA mutations are on the left.

The Most Recent Common Ancestor of the current McGehee participants probably had at least two sons and one of them had a mutation at DYS389-2. One son had a value of 31 and the other had a value of 30 for this marker.

From these two sons descend the remaining participants with descendants of the various lines having the mutations as indicated.